3M Glass Cleaner and Protector with Scotchgard Protection leaves an invisible layer of protection on glass for easier cleaning after routine use. It reduces fogging on windows and mirrors with repeated use, leaving an attractive shine. Cleans (but may not protect) other surfaces. Not for direct food contact surfaces, vehicles, aquariums or eyewear.3M Glass Cleaner and Protector not only cleans, but also makes glass easier to clean over time. Repeated usage creates a layer of Scotchgard Protection that makes it more effective than leading glass cleaners at removing fingerprints, lipstick – even permanent marker. Typically 5–7 cleanings creates a layer of Scotchgard Protection.